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detect.py
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detect.py
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import json
from pathlib import Path
from typing import Dict
import numpy as np
import click
import cv2 as cv
from tqdm import tqdm
def detect(img_path: str) -> Dict[str, int]:
"""Object detection function, according to the project description, to implement.
Parameters
----------
img_path : str
Path to processed image.
Returns
-------
Dict[str, int]
Dictionary with quantity of each object.
"""
wartKolor = [0,0,0,0]
arr_low_h = [31, 20, 162, 174]
arr_high_h = [56, 26, 176, 179]
arr_low_s = [85, 153, 82, 174]
arr_high_s = [255, 255, 235, 226]
arr_low_v = [17, 100, 0, 108]
arr_high_v = [175, 255, 121, 215]
arr_dilation = [4, 3, 12, 10]
arr_erosion = [5, 6, 4, 2]
# Pobieranie zdjęcia
img = cv.imread(img_path, cv.IMREAD_COLOR)
imgR = cv.resize(img, (0, 0), fx=0.25, fy=0.25, interpolation=cv.INTER_AREA)
imgB = cv.blur(imgR, (5, 5), cv.BORDER_DEFAULT)
frame_HSV = cv.cvtColor(imgB, cv.COLOR_BGR2HSV)
for i in range(4):
kernelE = np.ones((arr_erosion[i], arr_erosion[i]), np.uint8)
kernelD = np.ones((arr_dilation[i], arr_dilation[i]), np.uint8)
frame_threshold = cv.inRange(frame_HSV, (arr_low_h[i], arr_low_s[i], arr_low_v[i]),
(arr_high_h[i], arr_high_s[i], arr_high_v[i]))
erosion = cv.erode(frame_threshold, kernelE, iterations=1)
dilation = cv.dilate(erosion, kernelD, iterations=1)
contours, _ = cv.findContours(dilation, cv.RETR_EXTERNAL, cv.CHAIN_APPROX_NONE)
if i == 0: green = len(contours)
if i == 1: yellow = len(contours)
if i == 2: purple = len(contours)
if i == 3: red = len(contours)
#TODO: Implement detection method.
# red = 0
# yellow = 0
# green = 0
# purple = 0
return {'red': red, 'yellow': yellow, 'green': green, 'purple': purple}
@click.command()
@click.option('-p', '--data_path', help='Path to data directory', type=click.Path(exists=True, file_okay=False, path_type=Path), required=True)
@click.option('-o', '--output_file_path', help='Path to output file', type=click.Path(dir_okay=False, path_type=Path), required=True)
def main(data_path: Path, output_file_path: Path):
img_list = data_path.glob('*.jpg')
results = {}
for img_path in tqdm(sorted(img_list)):
fruits = detect(str(img_path))
results[img_path.name] = fruits
with open(output_file_path, 'w') as ofp:
json.dump(results, ofp)
if __name__ == '__main__':
main()